Tilting window and mounting therefor



Filed July 14, 1947 1954 v. B. K. RASMUSSEN 2,665,457

TILTING'WINDQW AND MOUNTING THEREFOR 2 Sheets-Sheet l j Q INV TOR.

Filed July 14, 1947 Jam 1954 v. a. K. RASMUSSEN 2,665,457

TILTING WINDOW AND MOUNTING THEREFOR 2 Sheets-Sheet 2 INVENTOR.

Patented Jan. 12, 1954 TILTING WINDOW AND MOUNTING THEREFOR Villum Benedikt Kann Rasmussen,

Copenhagen, Denmark Application July 14, 1947,."Serial No. 760,859

In Denmark May 22, 1945 Section 1, Public Law 690,.August s, 1946 Patent expires May 22, 1965 3 Claims.

The invention relates to tilting windows and pertaining mountings, and by tilting Windows should be understood windows of the kind where the openable sash can revolve around an axis in the vicinity of its center line for the opening of the window for ventilating purposes and furthermore can be swung around so far that the outside of the pane gets accessible for cleaning from the inside.

The purpose of the invention is to provide a simple and reliable suspension and guiding of the revolvable sash without the application of pin and link connections which are subjected to a considerable wear that a possibility is created for an easy and convenient operation of the window when it is opened for ventilating purposes as well as when it is revolved for cleaning. Another purpose of the invention-especially in the case of declining overhead windows and skylights-is to provide especially good possibilities for sealing against the penetration of rainwater through the dividing joint between sash and casing especially in the vicinity of the axis of revolution, where in the case of the window constructions known to this date it is not possible to attain a sufficiently good covering of the cover bars placed over the joint. A further purpose of the invention is to provide a mounting which can prevent the engagement between sash and easing from failing on account of shrinkage of the said parts or on account of rough handling at the fitting or operation of the window, which mounting is furthermore cheap to produce and makes possible a secure and convenient release of the sash from the casing.

The invention relates to tilting windows of the kind where the tiltable sash is connected to and guided in relation to the casing by means of circular-arc-shaped slide bars and guides mounted on the sash and the casing respectively in the vicinity of the middle of the latter. that is first and foremost characteristic of the invention is that, when the window is closed, the said arc-shaped slide bars and guides have their longest chords substantially parallel to the sash and their mutual centre situated a little inside or outside the latter at a distance from it which is slight as compared with the dimensions of the window, so that the first part of the opening motion of the sash from its closed position will as regards the central sash parts substantially occur as a sliding motion along the casing, parallel to the latter, while the outermost sash parts substantially move in a direction at right angles thereto.

The invention will be further described in the The feature following with references to the accompanying drawings in which Fig. 1 diagrammatically shows an embodiment of a tilting window in accordance with the invention, formed as a declining overhead window,

Fig. 2 shows a window in accordance with the invention, formed as a vertical wall window,

Fig. 3 shows, on a large scale, a side view of one of the main parts of the mounting,

Fig. lshows, on a large scale, a side view of another of the parts of the mounting, Fig. 5 shows, on a large scale, a side view of another of the main parts of the mounting,

Fig. 6 on a large scale, shows the parts of an overhead window situated in the vicinity of the mounting, the sash being shown in different positions,

Fig. 7 shows a section on line VII-VII in .Fig'. 6.

- In the drawing I designates the openable sash in a tilting window and 2 the casing of the latter. By means of arc-shaped slide bars and guides which will be further described in the following the sash is so connected to the frame that at the beginning of its motion away from the closed position it turns around an axis C situated almost at the middle of the window and at a slight distance from the plane of the sash and the casing, i. e. at a distance which is so adapted to the dimensions of the window that the upper and lower parts of the sash will move substantially at right angles to the plane of the casing, while the central parts'of the sash will move substantially parallel to this plane as indicated by arrows in Figs. 1 and 2. I

In the overhead window shown in Fig. 1 the axisC is situated on'the outside of the window, while in the wall window shown in Fig. 2 the axis C is situated on the inside of the sash, but

in both cases the arrangement is such that the upper sash parts move inwards and the lower sash parts move outwards at the beginning of the opening movement of the window.

For eiiecting the said guiding of the sash in relation to the casing a mounting may be used like the one shown in Figs. 3-5. This mounting consists of two main parts shown in Figs. 3 and 5 respectively. The mounting part shown in Fig. 3 must in the following be supposed to be intended for being secured to the casing, two symmetrical pieces being used, mounted each on one side of the window and nearly at half the height of the latter with the longest dimension parallel to the plane of the casing. These mounting parts consist of two concentrical, circular arc-shaped walls 5, which between them bound a channel 5, and of lugs '5 connected thereto with screw holes for clamping screws. One end of the wall 5 is cut away and substituted by a filling member 8 shown in Fig. 4. This filling member is accomodated revolvably around a pin 9 and is kept in its place by a screw inserted into screw holes It, so that the filling member can be swung to the side when this screw is removed.

The other mounting part which is shown in Fig. 5 should correspondingly be mounted on the sash, two symmetrical pieces being used. This mounting part consists substantially of a circular-arc-shaped rib ll corresponding to and displaceable in the channel 5. The rib II has a groove 52 ccncentrical therewith which in the operating position engages a pin I8 inserted in a hole M at one end of the channel 5, see Fig. 6, and furthermore there is in the concave side surface of the rib i l a recess 13 the placing and purpose of which will appear from the following.

In the operating position the mounting parts are in the closed position of the window situated in the way shown in Fig. 6 in relation to each other. The side walls 6 of the channel are here set off by hatching, while the rib H is shown in dotted lines in the position which it takes when the window is closed. On the window, which must here be supposed to be a declining verhead window, being opened, the rib H slides downwards, guided in the channel 5, and hereby makes the sash swing around the axis Ciinto the position indicated in dash-dot lines. In this position the window is stopped by the pin l8 arriving at the end of the groove i2, and thereby the window is fixed in the normally largest ventilation position. In this position which is also indicated in Fig. 1, the sash may be swung around the pin it as an axis of revolution into the almost vertical position indicated in Fig. 1, in which the outside is accessible from inside the room. This position is for the sake of perspicuity not shown in Fig. 6. The swinging is made possible by the previously mentioned recess 13 in the rib H engaging the end of the adjacent side wall of the channel 5, and it is stopped by the edge of the recess abutting the latter. The closing of the window is performed by revolvingit in the opposite direction.

It appears from Fig. 6 that the motion described of the sash in the vicinity of the closed position of the latter makes possible a considerable overlapping of cover bars 15 and It on the sash and the casing respectively, the upper end of the cover bar of the sash moving almost parallel to the casing, inwards beneath the lower end of the cover bar l5 of the casing as indicated by an arrow P in Fig. 6. The mutual arrangement of the cover bars appears from the section in Fig. 7 which furthermore shows that the cover bar 16 of the sash projects over a bar I! placed on the lowest part of the casing along the bar of the window. By this cover bar arrangement a perfectly reliable covering of the dividing joint between the sash and the casing in the full extent of the latter is attained.

It likewise appears from Fig. 6 that the sash can be removed from the casing by removal of the filling member 8, the rib H then being able to move downwards vertically out of the channel 5, the pin I8 during this motion passing through the recess 3.

The fitting of the mounting parts in the case of a window formed as a vertical wall window is analogous to what has been described above, but in this case the mountings should be placed with the concavity facing inwards towards the room and with the pin 13 placed above.

I claim:

1. A mounting for windows of the kind comprising a frame and a sash tiltable relative to said frame about a central horizontal axis, said mounting comprising two main parts arranged to be secured to the sash and the frame respectively, one of said parts having a circular-arcshaped channel open at one end and having a radius which exceeds the width of the mounting perpendicularly to said axis, and the other of said parts having a rib corresponding in shape to said channel, said rib having a groove situated concentrically within the rib and engaging a stop member carried by the other mounting part and placed near the open end of the channel thereof.

2. A mounting as claimed in claim 1, wherein the rib is formed with a recess near one end wall of said groove for allowing a swinging movement of one mounting part relative to the other about said stop member to take place after a displacement of said rib through said channel into a position in which said end wall of the groove abuts said stop member.

3. A mounting for windows of the kind comprising a frame and a sash tiltable relative to said frame about a central horizontal axis, said mounting comprising two main parts arranged to be secured to the sash and the frame respectively, one of said parts having a circular-arcshaped channel the radius of which exceeds the width of the mounting perpendicularly to said axis, and the other of said parts having a rib corresponding in shape to said channel, a portion, at least, of the side wall of said channel being movable for allowing said rib to be inserted in said channel.

VILLUM BENEDIKT KANN RASMUSSEN.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,004,672 Molby Oct. 3, 1911 1,045,265 Davock Nov. 26, 1912 1,205,239 Matthews et al. Nov. 21, 1916 1,462,239 Mollenkopf July 17, 1923 1,670,441 Ellison May 22, 1928 2, 21,058 Persson Nov. 12, 1940 

